Half to clifford b



(No Model.)

J. A. BROWN. PLUE STOPPER.

No. 478,044. Patented June 28,1892.

W/T/VESSES: I llVI/EIVTOI? %ZZW 5M f cfwczw v 6 ATTORNEYS.

UNITED STATES PATENT OFFIC JOSEPH ADDISON BROWN, OF RIVERHEAD, NEW YORK, ASSIGNOR OF ONE- HALF TO CLIFFORD B. AOKERLY, OF SAME PLACE.

FLU E-ST OPPER.

SPECIFICATION forming part of Letters Patent No. 478,044, dated June 28, 1892.,

Application filed August 28, 1891- To all whom it may concern-.-

Be it known that I, J OSEPHADDISONBROVVN, of .Riverhead, in the county of Suifolk and State of New York, have invented a new and useful Improvement in Fine Stoppers, of which the following is a full, clear, and exact description.

My invention relates to an improvement in flue-stoppers, and hasfor its object to provide a means for securing the stopper in the fine and to so construct the devices employed for that purpose that when they are attached to the body of the stopper they may be folded down in engagement with the body in a coinpact manner, thus rendering it possible for the complete flue-stoppers to be packed one upon the other for transportation or storage.

A further object of the invention is to so construct the fastening devices of the finestopper that they may be expeditiously and conveniently carried to an operative position, and whereby the said fastening devices will consist, mainly, of bow-springs so arranged as to cross one another and form substantially a spring-crown.

The invention consists in the novel construction and arrangement of parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar figures and letters of reference indicate corresponding partsin both the views.

Figure 1 is a perspective view of the linestopper, showing the fastening devices in operative position; and Fig. 2 is a plan view of the stopper, illustrating the fastening devices as folded down to enable the stoppers to be piled readily one upon another.

The body A of the flue-stopper may be made in the ordinary or in any approved manner, and the fastening devices consist of four angular or essentially L-shaped brackets 10 and two bow-springs 11 and 12, which springs are preferably made of flat steel wire; but the springs 'may be made of any suitable material'or may be of any desired shape in cross section. The end of each spring is pivotally attached by means of a pin13, rivet, or the equivalent thereof to one member of a bracket 10, the members of the brackets to which the sash No. 403,935. on model.)

springs are attached being those that extend at an angle from the body A of the flue-stopper when the brackets are secured thereto. The bow-springs l1 and 12 are bent somewhat to a U shape; but the members from a point above their centers are curved inward, so that the space between the bow portions of the springs is greater than between the extremities of the members.

The brackets 10 are riveted, soldered, or otherwise secured to theinner face of the body of the flue-stopper A, the outer edges of the brackets being preferably arranged upon the periphery of a circle 14, drawn or produced upon the inner face of the body-section A between its center and its margin. The brackets are so arranged that those attached to one springl2, for instancewill be vertically disposed upon the body in alignment one with the other and the brackets of the spring 11 horizontally disposed, as is clearly shown in the drawings. By thus locating the brackets of the several springs when the fluestopper is not in use the spring 12 may be folded down close to the inner face of the duestopper and the spring 11 in like manner over one member of the spring 12, as shown in Fig. 2. By thus disposing of the springs the fluestoppers may be packed in nests or they may be singly placed in smaller spaces than can articles of like description of the ordinary construction.

When the fiue-st0pper is to be used, the spring 11 is carried upward until its members stand at a right angle to the body A, and then the spring 12 is carried up to the same position, having abearing upon and crossing the central portion of the spring 11. When the springs are in this position, owing to the bulging of their sides and their position, one at a right angle to the other, they partake of the general contouror shape of a'crown, and when forced in the flue-opening they bind against the sides thereof and eifectually hold the body A in position as a covering for the opening.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. As an improved article of manufacture, a flue-stopper comprising a body portion and two bow-springs pivotedto the body at right angles to each other, as specified.

2. As an improved article of manufacture, body when not in use and. carried upward, a flue-stopper consisting of a body-section, ancrossing one another when required for use, I0 gle-braekets arranged opposite each other, one as and for the purpose specified. set horizontally and the other Vertically and 5 secured to thebocly', and bow-springs the mem- JOUEPII ADDISON LRO W bers of each of which are pivotally attached WVitnesses: to one aligning set of the brackets, whereby CHARLES E. BUNOE,

the springs may be'folded down upon the R. T. SKIDMORE. 

